haha!! awesome idea! ^^ maybe you can show us the placement on a shirt. i like the dark brown as background color a lot! i would change the violet of the seat and since you have colors left for use maybe you can add some shading to the popsicles.
I don't know yet how threadless picks the tees to print, but I wonder if your concept could use a little more...something...? Like... who would ride this bicycle? Or what happens when it gets hot out?
I initially had considered Popcycle, but then in note pad was playing with words and wrote Popsicle. I think I will go with the suggestions for Popcycle.
Better.
There's too much of that patch on the ground (shadow or melt?).
If it's a shadow, just a nice clean patch under the rear whell will do, if it's melt it should be trailing behind.